Uh oh. Naked ScarJo photos?

E! News and TMZ say that actress, who is filming The Avengers right now in New York, may be the victim of a cellphone hacker. The two photos that have popped up appear to be taken by the actress. In one, she's on a bed, topless. And in another she's doing the popular bathroom mirror shot.

In March, Johansson's name popped up on a list of celebrities whose cellphones, computers and e-mail accounts were hacked. Now, sources are saying that ScarJo has contacted the FBI to get involved, as they were in March when Vanessa Hudgens was targeted.